Vibrator.



E. J'. ROHNE. VIBRATOR. APPLICATION FILED MAYIS, 1912.

Patented Jan. 12, 1915.

State of Minnesota, have invented certain a conducting post 13,.as of carbon.- The new and useful Improvements in Vibrators, conducting post 13, as shown in Fig. 2, will of which the following is a specification. stand directly under the center of the vi- My invention relates to improvements in brator B, and in operation will make convibrators used in giving vibratory treattact with the plate 20through the-openings ments to the surface of the human body, and 23 in' the bottom plate 9 and insulation 21. consists particularly of a simple form of The circuit wires 14 and 15 will extend hand device adapted to be actuated through through the central opening 16 of the the medium of 'an alternating current workhandle,-the circuit being completed through ing through electromagnets and an assothe device as shown in Fig. 4. As shown the ciated vibratory plate. circuit is completed from the pole 17.suc-- To this end the invention consists in the cessively through the windings of the three features of construction, combination, and electromagnets shown, the wiring of the last arrangement of parts hereinafter described electromagnet being connected at 18 with and claimed. 1 the coil 12. From the coil 12 the circuit is In the accompanying drawings forming completed through the conducting point l3,v part of this specification, Figure 1 is a plan the plate 20, granules 22 and outer wall of view of my improved invention; Fig. 2 is a the vibrator B, and the spring support 8 section on line ma2 of Fig. '1; Fig. 3 is a to the pole 19. In operation, of course, the detail view of a vibratory plate forming poles 17 and'1'9 will be alternately positive part of the invention; and Fig. 4 is a diaand negative poles of the circuit. grammatic view illustrating the wiring. In use, when the circuit is completed by Referring to the drawings A represents the connecting of the device with thecurthe casing supported at one end by a handle rent supply and the pressing of the vibrator 2, which handle preferably stands at an against a surface to force the vibrator into angle with the casing to allow more, conconductive relationship with the conducting 8 venient handling of the device. The casing point 13, the magnet cores 6 will be inter is provided with a removable c0ver3 formed mittently electromagnetized to attract the with a central opening. Supported within vibrator and draw the vibrator toward the the casing, as upon a plate 4, is a plurality cores by reason of the vibrator having of electromagnets, each electromagnet bespring support 8. When the cores are deing made up of windings 5 and core 6. magnetized between the alternations of the Supported upon the plate 4 through the current the spring 8 assisted by the coil medium of a post 7 is an upwardly extendspring 12 will carry the vibrator back to ing bent spring arm 8. Said arm at itsnormal position. The conducting point 13 upper inwardly bent end forms a support thus acts as a resilient electrical contact for for the vibrator B. The vibrator B is prefthe vibrator, being yieldable through the erably made up as best shown in Fig. 2, medium of the supporting spring 12' to alconsisting of a bottom plate 9 large enough low the vibrator to be drawn into contact in diameter to extendmnder the cover 3, with the cores.

and a superimposed sheet 10 clenched over While I haveshown three electromagnets UNITED STATES PATENT OFFICE.

EVEN J. ROHNE, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONE-HALF I0 SEVERIN:

N. SOREN SEN, MINNEAPOLIS, MINNESOTA.

VIBRATORI Specification of Letters Patent.

Patented Jan. 12, 1915.

Application filed May 13, 1912. Serial No. 696,808.

To all whom it may concern Be it known that LEVEN J. Ror xn a citizen of the United States, residing at Minneapolis, in the county of Hennepin and the edge of the lower sheet and curved upwardly to extend through the opening in the cover'3 to form a surface to be pressed against the part to be treated. Arranged outer wall of the vibrator. Centrally supported on the plate I through the medium of an insulated post- 11 is a coil spring 12, the coil spring supporting at its upper end it will be apparent that a lesser or greater number may be employed without departing from the principles of my invention.

By means of the features of construction within the vibrator and upon the. bottom tric connection between the plate 20 and the and arrangement shown and described I secure an extremely cheap and simple con- 3 struction adapted for use with an alternating current and without the use of motor for' actuation of the vibrator. I Through the medium oflthe spring sup plate thereof is a conducting plate 20 insulated from the bottom plate by insulation 21. Positioned within the vibrator are granules 22 as of carbon to form the elecport of the conducting post 13 which is in-,

dependent of the spring support of the vibrator, I secure a construction in which the vibrator will be pushed away from the electromagnets independent of its. own supporting spring. It is' desirable to free the Vibrator quickly and completely from the electromagnets. on account of the residual magnetism left in the cores between current alternations,

but it is rendered easy by having the two cooperating springs, the one for the vibrator and the one for the conducting post, as embodied in my construction.

I claim as my invention:

' 1. A vibratory device of the class described comprising a plurality of electromagnets connected in series, a vibrator yieldably supported adjacent to corresponding ends of theco'res of said electromagnets, a conducting post having independent yieldable support adjacent the inner side of said vibrator, and alongside said electro-magnets, and means for completing the circuit of an alternating current through the coils of said magnets to and through said yieldably supported conducting post and said vibrator for the purpose set forth.

2. A vibratory device of the classdescribed comprising a casingand a supporting handle, a plurality of electromagnets supported within said casing, a vibrator having spring support in position to be attracted by the cores of said magnets, a' con- This is not always easy ducting post having independent spring support adjacent the inner face of said vibrator and alongside said electromagnets, and means for completing the circuit of an alternating current through the windings of said electromagnets and to and through said conducting post and said vibrator and its pendent support adjacent the inner side of v said vibrator in alinement with the opening in the bottom plate thereof, and means for completing the circuit of an alternating current through the windings of said magnets to and through said conducting postand said vibrator and contained granules for the purpose set forth.

In testimony whereof I aflix my signature in presence of two Witnesses.

H EVEN J ROHNE.

Witnesses:

H. SMITH,

H. S. JoHNsoN. 

